* class documentation above). This method is <i>generally expected</i>, but not absolutely
   * required, to have the following properties:
   *
   * <ul>
   *   <li>Its execution does not cause any observable side effects.
   *   <li>The computation is <i>consistent with equals</i>; that is, {@link Objects#equal
   *       Objects.equal}{@code (a, b)} implies that {@code predicate.apply(a) ==

  // such as BoundedQueueExecutorService to allow extends but it would be nice to make it final to
  // avoid unintended usage.

  // The execution list to hold our listeners.
  private final ExecutionList executionList = new ExecutionList();

  /**
   * Creates a {@code ListenableFutureTask} that will upon running, execute the given {@code
   * Callable}.
   *

import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.artifact.repository.Authentication;
import org.apache.maven.bridge.MavenRepositorySystem;
import org.apache.maven.execution.MavenExecutionRequest;
import org.apache.maven.settings.Mirror;
import org.eclipse.aether.repository.AuthenticationContext;
import org.eclipse.aether.repository.AuthenticationSelector;

     * - Purges job logs older than configured days
     * - Purges user info logs older than configured days
     * - Updates job log status
     *
     * @return a string containing the execution result and any error messages
     */
    public String execute() {
        final CrawlingInfoService crawlingInfoService = ComponentUtil.getComponent(CrawlingInfoService.class);

  // such as BoundedQueueExecutorService to allow extends but it would be nice to make it final to
  // avoid unintended usage.

  // The execution list to hold our listeners.
  private final ExecutionList executionList = new ExecutionList();

  /**
   * Creates a {@code ListenableFutureTask} that will upon running, execute the given {@code
   * Callable}.
   *

     *
     * @param statement
     *            {@link Statement}. Must not be {@literal null}.
     * @param sql
     *            SQL string. Must not be {@literal null} or empty.
     * @return The result of the execution.
     * @see Statement#execute(String)
     */
    public static boolean execute(final Statement statement, final String sql) {
        assertArgumentNotNull("statement", statement);

///

## Ausführungsreihenfolge bei mehreren Middlewares { #multiple-middleware-execution-order }

import java.util.Set;

import org.apache.maven.artifact.Artifact;
import org.apache.maven.artifact.resolver.ArtifactNotFoundException;
import org.apache.maven.artifact.resolver.ArtifactResolutionException;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.project.MavenProject;

/**
 * @deprecated As of 3.2.2, and there is no direct replacement. This is an internal class which was not marked as such,
 *             but should have been.

            Duration elapsed = clock.elapsedTime();
            Duration calculated = Duration.between(clock.startInstant(), now);

            // Allow for small timing differences (1ms) due to execution time between measurements
            assertTrue(
                    Math.abs(elapsed.toMillis() - calculated.toMillis()) <= 1,
                    "Elapsed time should match calculated duration between start and now");

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.execution;

import java.time.Duration;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.maven.artifact.ArtifactUtils;